Browse Items (2908 total)

Schematic diagram of a nuclear power plant using a pressurized-water reactor.

Table illustrating how to read and identify numbers

A table explaining and visualizing the numeration system for schoolchildren and others learning the fundamentals of math and calculation.

Nyamata Memorial Site, skulls. Nyamata, Rwanda.

When Oberlin College first admitted students in 1833, fifteen of the forty-four students were women. These women, however, were only admitted to the college preparatory program, while the men pursued a traditional college education. The first women…

Father Schoener looking at a new rose, Rosa gigantea crossed with Souvenir de Claudius Pernet.

on back: The latest photo of the Padre of the Roses, standing at a new rose, the first non-fading yellow, a seedling of a Rosa gigantea Hybrid x…